Math 115
posted by sally .
9/11  3/11 + 7/11=13/11 which is improper so the answer is 1 1/11?

Sally, a, or ak  How did you get this answer?
13/11 = 1 1/11 
by dividing 13 into 11 like the web site showed

IF the web site showed that, block it. I suspect it told you to divide 13 by 11. IT goes once, with a remainder of 2
Answer: 1 2/11
http://www.aaamath.com/fra57cx3.htm